Name:           grub-btrfs
Version:        4.14
Release:        1%{?dist}
Summary:        Include btrfs snapshots in GRUB boot menu

License:        GPL-3.0-or-later
URL:            https://github.com/Antynea/grub-btrfs
Source0:        https://github.com/Antynea/grub-btrfs/archive/v%{version}.tar.gz

BuildArch:      noarch

Requires:       grub2
Requires:       btrfs-progs
Requires:       bash

%description
grub-btrfs improves GRUB by automatically adding btrfs snapshots to the boot
menu. You can boot your system from a snapshot directly from the GRUB menu.

%prep
%autosetup -n grub-btrfs-%{version}

# Create Fedora/RHEL-specific config with correct paths
# Fedora uses /boot/grub2 and grub2-mkconfig instead of Debian's /boot/grub
sed -i 's|^#GRUB_BTRFS_GRUB_DIRNAME=.*|GRUB_BTRFS_GRUB_DIRNAME="/boot/grub2"|' config
sed -i 's|^#GRUB_BTRFS_MKCONFIG=.*|GRUB_BTRFS_MKCONFIG=/usr/bin/grub2-mkconfig|' config
sed -i 's|^#GRUB_BTRFS_SCRIPT_CHECK=.*|GRUB_BTRFS_SCRIPT_CHECK=grub2-script-check|' config

%build
# No compilation - project is shell scripts only
:

%install
# Manual install (upstream Makefile requires root, which rpmbuild does not have)
# Mirrors upstream Makefile with SYSTEMD=true, INITCPIO=false, OPENRC=false

# Man pages
install -Dm644 manpages/grub-btrfs.8.man %{buildroot}%{_mandir}/man8/grub-btrfs.8
install -Dm644 manpages/grub-btrfsd.8.man %{buildroot}%{_mandir}/man8/grub-btrfsd.8

# GRUB script and config
install -Dm755 41_snapshots-btrfs %{buildroot}%{_sysconfdir}/grub.d/41_snapshots-btrfs
install -Dm644 config %{buildroot}%{_sysconfdir}/default/grub-btrfs/config

# Daemon binary and systemd service
install -Dm755 grub-btrfsd %{buildroot}%{_bindir}/grub-btrfsd
install -Dm644 grub-btrfsd.service %{buildroot}%{_unitdir}/grub-btrfsd.service

# Documentation
install -Dm644 LICENSE %{buildroot}%{_datadir}/licenses/%{name}/LICENSE
install -Dm644 README.md %{buildroot}%{_datadir}/doc/%{name}/README.md
install -Dm644 initramfs/readme.md %{buildroot}%{_datadir}/doc/%{name}/initramfs-overlayfs.md

%files
%license %{_datadir}/licenses/%{name}/LICENSE
%doc %{_datadir}/doc/%{name}/README.md
%doc %{_datadir}/doc/%{name}/initramfs-overlayfs.md
%config(noreplace) %{_sysconfdir}/default/grub-btrfs/config
%{_sysconfdir}/grub.d/41_snapshots-btrfs
%{_bindir}/grub-btrfsd
%{_unitdir}/grub-btrfsd.service
%{_mandir}/man8/grub-btrfs.8*
%{_mandir}/man8/grub-btrfsd.8*

%post
# regen grub configuration after installation
if [ -x /usr/bin/grub2-mkconfig ] && [ -d /boot/grub2 ]; then
    # Update main grub.cfg if it exists
    if [ -f /boot/grub2/grub.cfg ]; then
        /usr/bin/grub2-mkconfig -o /boot/grub2/grub.cfg 2>/dev/null || true
    fi
    # On EFI systems, grub.cfg may be in EFI partition
    for efi_cfg in /boot/efi/EFI/*/grub.cfg /boot/efi/EFI/BOOT/grub.cfg; do
        if [ -f "$efi_cfg" ]; then
            grub2-mkconfig -o "$efi_cfg" 2>/dev/null || true
        fi
    done
fi
# Enable and start the grub-btrfsd daemon
if [ $1 -eq 1 ]; then
    %systemd_post grub-btrfsd.service
fi

%preun
if [ $1 -eq 0 ]; then
    %systemd_preun grub-btrfsd.service
fi

%postun
# regenerate grub configuration after removal
if [ $1 -eq 0 ] && [ -x /usr/bin/grub2-mkconfig ]; then
    if [ -f /boot/grub2/grub.cfg ]; then
        /usr/bin/grub2-mkconfig -o /boot/grub2/grub.cfg 2>/dev/null || true
    fi
    for efi_cfg in /boot/efi/EFI/*/grub.cfg /boot/efi/EFI/BOOT/grub.cfg; do
        if [ -f "$efi_cfg" ]; then
            grub2-mkconfig -o "$efi_cfg" 2>/dev/null || true
        fi
    done
fi

%changelog
* Sat Mar 07 2026 Brandon Lester <blester@oreonhq.com> - %{version}-%{release}
- initial package